Possibility to freely place graphics or graphic elements on map
Would be great to be able to place graphic outline elements into the map. For example draw an outline around a group of nodes to create a different kind of more loose connection/grouping. Nice if such shapes could be colored too and placed behind the map.
Guillaume Berche commented
This could be used during the drawing of impact maps to group actors, impacts and delivrables.
Freely positionned text would enable separare metrics table (as on impact mapping book p57)